FO285

FIBER OPTIC ROTARY JOINT

The FO285 (single-channel singlemode) is passive and bidirectional, and allows the transfer of optical signals across rotational interfaces. Also offer other benefits of fiber optics, including low spark hazard.

With a body diameter of only 9.5 mm and length 26 mm the FO285 unit is ideally suited to applications where size and weight are critical issues.

The FO285 can be combined with our electrical and/or fluid slip rings, providing a single, compact package for optical signals, electrical power and fluid transfer.

Features

Provides rotary coupling for a singlemode fiber link

Passive bidirectional device

Alternative drive coupling and mounting arrangements are available (consult factory for specification details)

Stainless steel, aluminum or anodized aluminum housing

Rugged design

MIL-STD-167-1 ship vibration

MIL-STD-810F functional shock (40 g)

Benefits

Can be integrated into existing slip ring designs

Passive bidirectional optical transmission

Can be combined with our electrical slip rings and fluid unions

Long life

FO285 Specifications

Fiber Size (Microns)

9 / 125 SMF-28 (Consult factory for other SM fiber types)

Material

Stainless steel

Insertion Loss

Typical < 1.5 dB, Maximum < 3.5 dB

Rotation Variation (Typical)

Typical < 0.5 dB, Maximum < 1.5 dB

Back Reflection

Typical 22 dB, Minimum 18 dB
Optional: Typical 40 dB, Minimum 35 dB

Wavelength

Suitable for operation over full CWDM band (18 wavelengths from 1271 nm to 1611 nm in 20 nm increments), tested at 1310 nm and/or 1550 nm. Consult factory for other wavelengths such as 900-1100 nm band (tested at 1060 nm)

Rotational Speeds

To 1000 rpm. Higher rotational speeds should be discussed with the factory.

Temperature

-55° C to +75° C. Consult factory for extended range.

Vibration

Per MIL-STD-167-1A

Shock

40 g / 11 ms sawtooth per MIL-STD-810 Method 516

Terminations

ST or FC connector receptacles or pigtailed with cable to meet customer’s requirements. Consult factory for other connectors

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